diff --git a/api/api.go b/api/api.go
index d0c23184dcc49065edcfbd0d2c44caf1fb839aac..4b597098e410b609ba46fb0ca2e378849473739b 100644
--- a/api/api.go
+++ b/api/api.go
@@ -67,8 +67,12 @@ func Init(dbPath string, signKey string, mail *Mail, r *mux.Router) error {
 	r.HandleFunc("/order/{id:[0-9]+}", a.authNum(a.GetOrder)).Methods("GET")
 	r.HandleFunc("/order/{id:[0-9]+}", a.authNumRole(a.UpdateOrder)).Methods("PUT")
 	r.HandleFunc("/order/{id:[0-9]+}", a.authNumRole(a.DeleteOrder)).Methods("DELETE")
+	r.HandleFunc("/order/{id:[0-9]+}/arrive", a.authNumRole(a.ArrivedOrder)).Methods("PUT")
+	r.HandleFunc("/order/{id:[0-9]+}/collected", a.authNum(a.CollectOrder)).Methods("PUT")
 	r.HandleFunc("/order/active", a.auth(a.ListActiveOrders)).Methods("GET")
 	r.HandleFunc("/order/picks", a.authOrderNum(a.ListOrderPicks)).Methods("GET")
+	r.HandleFunc("/order/unarrived", a.authNum(a.ListOrderUnarrived)).Methods("GET")
+	r.HandleFunc("/order/collectable", a.authNum(a.ListOrderCollectable)).Methods("GET")
 	r.HandleFunc("/order/{id:[0-9]+}/purchase", a.authNum(a.AddOrderPurchase)).Methods("POST")
 	return nil
 }
diff --git a/api/db/order.go b/api/db/order.go
index 252856c1c7be56050ea1750d418803a1f1b4bab3..99a7f73c1c61f67f90f20cbb6307958ff97b7328 100644
--- a/api/db/order.go
+++ b/api/db/order.go
@@ -9,14 +9,19 @@ import (
 	"gorm.io/gorm/clause"
 )
 
+const (
+	updateOrderDuration = 5 * 24 * time.Hour
+)
+
 type Order struct {
 	gorm.Model
-	Name        string    `json:"name"`
-	Description string    `json:"description"`
-	MemberNum   int       `json:"member_num" gorm:"column:member"`
-	Member      *Member   `json:"member,omitempty" gorm:"foreignKey:MemberNum;references:Num"`
-	Deadline    time.Time `json:"deadline"`
-	Active      bool      `json:"active" gorm:"index"`
+	Name        string     `json:"name"`
+	Description string     `json:"description"`
+	MemberNum   int        `json:"member_num" gorm:"column:member"`
+	Member      *Member    `json:"member,omitempty" gorm:"foreignKey:MemberNum;references:Num"`
+	Deadline    time.Time  `json:"deadline"`
+	Active      bool       `json:"active" gorm:"index"`
+	Arrived     *time.Time `json:"arrived,omitempty"`
 
 	Products      []OrderProduct `json:"products"`
 	Transactions  []Transaction  `json:"transactions" gorm:"foreignKey:OrderID"`
@@ -60,6 +65,29 @@ func (d *DB) ListOrderPicks(num int) (orders []Order, err error) {
 	return
 }
 
+func (d *DB) ListOrderUnarrived(memberNum int) (orders []Order, err error) {
+	err = d.db.Preload(clause.Associations).
+		Preload("Transactions.OrderPurchase").
+		Where("member = ?", memberNum).
+		Where("deadline >= ?", time.Now().Add(-updateOrderDuration)).
+		Where("active is false").
+		Where("arrived is null").
+		Find(&orders).Error
+	return
+}
+
+func (d *DB) ListOrderCollectable(memberNum int) (transactions []Transaction, err error) {
+	err = d.db.Preload("OrderPurchase.OrderProduct.Product").
+		Preload("Order").
+		Joins("left join orders on transactions.order_id = orders.id").
+		Where("transactions.member = ?", memberNum).
+		Where("collected is null or collected = false").
+		Where("orders.Arrived is not null").
+		Find(&transactions).
+		Error
+	return
+}
+
 func (d *DB) GetOrder(memberNum int, id int) (order Order, transaction Transaction, err error) {
 	err = d.db.Preload(clause.Associations).
 		Preload("Products.Product").
@@ -96,7 +124,7 @@ func (d *DB) UpdateOrder(memberNum int, id int, order *Order) error {
 	if memberNum != 0 && dbOrder.MemberNum != memberNum {
 		return ErrorInvalidRequest
 	}
-	if dbOrder.Deadline.Add(5 * 24 * time.Hour).Before(time.Now()) {
+	if dbOrder.Deadline.Add(updateOrderDuration).Before(time.Now()) {
 		return ErrorInvalidRequest
 	}
 	for _, p := range order.Products {
@@ -193,6 +221,7 @@ func updateOrderTransaction(tx *gorm.DB, id int, total int, order *Order) error
 			return err
 		}
 		order.Active = true
+		order.Arrived = nil
 		order.TransactionID = nil
 	} else {
 		totalDiff := total - transaction.Total
@@ -434,3 +463,35 @@ func (d *DB) DeactivateOrders() []Order {
 	}
 	return deactivatedOrders
 }
+
+func (d *DB) ArrivedOrder(memberNum int, id int) error {
+	dbOrder, _, err := d.GetOrder(0, id)
+	if err != nil {
+		return err
+	}
+
+	if memberNum != 0 && dbOrder.MemberNum != memberNum {
+		return ErrorInvalidRequest
+	}
+	if dbOrder.Deadline.Add(updateOrderDuration).Before(time.Now()) {
+		return ErrorInvalidRequest
+	}
+	if dbOrder.Active {
+		return ErrorInvalidRequest
+	}
+
+	return d.db.Model(&Order{}).Where("id = ?", id).Update("arrived", time.Now()).Error
+}
+
+func (d *DB) CollectOrder(memberNum int, id int) error {
+	dbOrder, t, err := d.GetOrder(memberNum, id)
+	if err != nil {
+		return err
+	}
+
+	if dbOrder.Active || dbOrder.Arrived == nil {
+		return ErrorInvalidRequest
+	}
+
+	return d.db.Model(&Transaction{}).Where("id = ?", t.ID).Update("collected", true).Error
+}
diff --git a/api/db/transaction.go b/api/db/transaction.go
index e888c499d57cdd0ceb1c3283e0b233a54337d537..9bc49ed1bb7cf808a3cd071aa51d034165cdac2f 100644
--- a/api/db/transaction.go
+++ b/api/db/transaction.go
@@ -32,6 +32,7 @@ type Transaction struct {
 	Order         *Order          `json:"order,omitempty" gorm:"constraint:OnDelete:CASCADE"`
 	OrderID       *uint           `json:"-"`
 	Refund        *Order          `json:"refund,omitempty" gorm:"foreignKey:TransactionID"`
+	Collected     *bool           `json:"collected,omitempty"`
 }
 
 type Topup struct {
diff --git a/api/order.go b/api/order.go
index 259aa476c89c5afdba901a22f2a99b3dbdac9e7d..d6d80ec57a9b1a90643082560c409bc2880aeead 100644
--- a/api/order.go
+++ b/api/order.go
@@ -73,6 +73,40 @@ func (a *api) ListOrderPicks(num int, w http.ResponseWriter, req *http.Request)
 	}
 }
 
+func (a *api) ListOrderUnarrived(num int, w http.ResponseWriter, req *http.Request) {
+	orders, err := a.db.ListOrderUnarrived(num)
+	if err != nil {
+		log.Printf("Can't list unarrived orders: %v", err)
+		w.WriteHeader(http.StatusInternalServerError)
+		return
+	}
+
+	w.Header().Set("Content-Type", "application/json")
+	w.WriteHeader(http.StatusOK)
+	err = json.NewEncoder(w).Encode(orders)
+	if err != nil {
+		log.Printf("Can't encode unarrived orders: %v", err)
+		w.WriteHeader(http.StatusInternalServerError)
+	}
+}
+
+func (a *api) ListOrderCollectable(num int, w http.ResponseWriter, req *http.Request) {
+	transactions, err := a.db.ListOrderCollectable(num)
+	if err != nil {
+		log.Printf("Can't list collectable orders: %v", err)
+		w.WriteHeader(http.StatusInternalServerError)
+		return
+	}
+
+	w.Header().Set("Content-Type", "application/json")
+	w.WriteHeader(http.StatusOK)
+	err = json.NewEncoder(w).Encode(transactions)
+	if err != nil {
+		log.Printf("Can't encode collectable orders: %v", err)
+		w.WriteHeader(http.StatusInternalServerError)
+	}
+}
+
 func (a *api) GetOrder(num int, w http.ResponseWriter, req *http.Request) {
 	vars := mux.Vars(req)
 	id, _ := strconv.Atoi(vars["id"])
@@ -230,3 +264,50 @@ func (a *api) AddOrderPurchase(num int, w http.ResponseWriter, req *http.Request
 		w.WriteHeader(http.StatusInternalServerError)
 	}
 }
+
+func (a *api) ArrivedOrder(num int, role string, w http.ResponseWriter, req *http.Request) {
+	vars := mux.Vars(req)
+	id, _ := strconv.Atoi(vars["id"])
+	if role == "admin" {
+		num = 0
+	}
+
+	err := a.db.ArrivedOrder(num, id)
+	if err != nil {
+		if errors.Is(err, db.ErrorNotFound) {
+			w.WriteHeader(http.StatusNotFound)
+			return
+		}
+		if errors.Is(err, db.ErrorInvalidRequest) {
+			w.WriteHeader(http.StatusUnauthorized)
+			return
+		}
+		log.Printf("Can't arrive order %s: %v", vars["id"], err)
+		w.WriteHeader(http.StatusInternalServerError)
+		return
+	}
+
+	w.WriteHeader(http.StatusAccepted)
+}
+
+func (a *api) CollectOrder(num int, w http.ResponseWriter, req *http.Request) {
+	vars := mux.Vars(req)
+	id, _ := strconv.Atoi(vars["id"])
+
+	err := a.db.CollectOrder(num, id)
+	if err != nil {
+		if errors.Is(err, db.ErrorNotFound) {
+			w.WriteHeader(http.StatusNotFound)
+			return
+		}
+		if errors.Is(err, db.ErrorInvalidRequest) {
+			w.WriteHeader(http.StatusUnauthorized)
+			return
+		}
+		log.Printf("Can't collect order %s: %v", vars["id"], err)
+		w.WriteHeader(http.StatusInternalServerError)
+		return
+	}
+
+	w.WriteHeader(http.StatusAccepted)
+}